jump ball (suomeksi)

Määritelmät:

A method used to begin or resume play in basketball. Two opposing players attempt to gain control of the ball after it is tossed up into the air in between them by an official.Wikipedia [http://en.wikipedia.org/wiki/Jump_ball jump ball]
Metaphor for a contest [http://books.google.com/books?id=ytJNRDL0zDgC&lpg=PA56&dq=%22cambridge%20dictionary%20of%20american%20idioms%22%20%22too%20close%20to%20call%22&pg=PA56v=onepage&q&f=false too close to call].
In the context of general equities,Campbell R. Harvey's [http://www.duke.edu/~charvey/Classes/wpg/bfglosj.htm Hypertextual Finance Glossary]